EENT 9% Flashcards
Eyelid changes: crusting, greasy, scaling, red-rimming of eyelid and eyelash, flaking along with dry eyes and associated seborrhea and rosacea
Blepharitis
History of blunt trauma, muscle entrapment, eyelid swelling, gaze restriction, double vision, decreased visual acuity, enophthalmos (sunken eye).
Blowout fracture
Blowout fracture: anesthesia/paresthesia in the gums, upper lips, and cheek due to damage to the ______ nerve
infraorbital
Blurred vision over months or years, halos around lights.
Cataract
Clouding of the lens =
Clouding of cornea =
Cataract; glaucoma
Cataract treatment
Fundoscopy: “black on red background.”
A sterile painless (non-infectious) granuloma of the internal meibomian sebaceous gland, painless “cold” lid nodule
Chalazion
Copious watery discharge, scant mucoid discharge.
Viral conjunctivitis
Adenovirus (most common). Self-limiting associated with URI.
Pt presents with purulent (yellow) discharge, crusting, usually worse in the morning. May be unilateral.
Bacterial conjunctivitis
Acute mucopurulent conjunctivitis
S. pneumonia, S. aureus
Copious purulent discharge, in a patient who is not responding to conventional conjunctivitis treatment
M. catarrhalis, Gonococcal
Conjunctivitis in newborn; scant mucopurulent discharge; giemsa stain - inclusion body.
Chlamydia
Red eyes, itching and tearing, usually bilateral, cobblestone mucosa on the inner/upper eyelid.
Allergic conjunctivitis
Sudden onset of eye pain, photophobia, tearing, foreign body sensation, blurring of vision, and/or conjunctival injection.
Corneal abrasion
Corneal abrasion diagnosis; treatment
Fluorescein dye - increased absorption in devoid area.
Antibiotic eye ointment, no patching.
Contact lense wearers; caused by deep infection in the cornea by bacteria, viruses or fungi.
Corneal ulcer
Corneal ulcer findings; testing
White spot on surface of cornea that stains with fluorescein: round “ulceration” versus “dendritic” pattern like herpes
Inflammation of the nasolacrimal duct or the nasolacrimal gland (supratemporal);
Infectious obstruction of nasolacrimal duct (inferomedial region)
Dacryoadenitis
Dacryocystitis
Eversion of the eyelid; occurs when the eyelid turns outward exposing the palpebral conjunctiva; conjunctiva will appear red from air exposure and inflammation
Ectropion
Inversion of an eyelid; occurs when the eyelid turns inward; cause; treatment.
Entropion.
Most commonly caused by age-related tissue relaxation. Surgical correction is definitive
Ocular foreign body treatment; possible sequella
Irrigation and removal with sterile swab.
Intraocular foreign bodies require immediate surgical removal by an ophthalmologist.
Metallic foreign bodies may leave a rust ring.
Ocular aqueous outflow obstruction, most common, > 40 y/o, African Americans, often asymptomatic, peripheral to central gradual visual loss (versus macular degeneration which is central loss)
Open angle glaucoma
Acute angle closure glaucoma signs/symptoms
Iris against lens, dark environment, acute loss of vision, nausea, and vomiting. Classic triad: injected conjunctiva, steamy cornea, and fixed dilated pupil; this is an ophthalmic emergency.
Painful, warm (hot), swollen red lump on the eyelid (different from a chalazion which is painless); cause
Hordeolum
Think “H” for Hot = Hordeolum.
Most common organism S. aureus.
Trauma causes blood in the anterior chamber of the eye (between the cornea and the iris). The blood may cover part or all of the iris (the colored part of the eye) and the pupil, and may partly or totally block vision in that eye.
Hyphema
Hyphema treatment
Treat with eye protection and rest with the head of the bed at 30 degrees all the time.
Gradual painless loss of central vision. The macula is responsible for central visual acuity which is why macular degeneration causes gradual central field loss. Metamorphopsia (distortion on Amsler grid)
Macular degeneration
Atrophic changes with age – slow gradual breakdown of the macula (macular atrophy), with Drusen (yellow retinal deposits).
Dry macular degeneration (85% of cases)
Drusen = Dry
Hemorrhage, neovascuration. New abnormal vessels grow under central retina which leak and bleed causing retinal scarring.
Wet macular degeneration
Rapid involuntary eye movement
Nystagmus
Most common and often benign nystagmus
Gaze-evoked
Down/upbeat nystagmus etiology
CNS dysfunction
Vestibular (horizontal) nystagmus etiology
Labyrinth or vestibular nerve dysfunction
Acute inflammation and demyelination of the optic nerve leading to acute monocular vision loss/blurriness and pain on extraocular movements. Typically occurs over hours or days. Associated with multiple sclerosis.
Optic neuritis
Optic neuritis fundoscopy findings
Inflammation of the optic disc
Decreased extraocular movement, pain with movement of the eye and proptosis, signs of infection. Often associated with sinusitis. Occurs more often in children than adults.
Orbital cellulitis
Orbital cellulitis treatment
Hospitalization and IV broad-spectrum antibiotics.
Optic disc swelling that is caused by increased intracranial pressure. The swelling is usually bilateral and can occur over a period of hours to weeks.
Papilledema
Papilledema causes
Brain tumor/abscess, meningitis, cerebral hemorrhage, encephalitis, pseudotumor cerebri.
Papilledema testing; treatment
Immediate neuroimaging to rule out mass lesion, then
CSF analysis.
Treat underlying cause.
Elevated, superficial, fleshy, triangular-shaped “growing” fibrovascular mass (most common in inner corner/nasal side of the eye). Treatment.
Pterygium
Only surgically remove when vision is affected
Vertical curtain coming down across the field of vision, may sense floaters or flashes at onset, loss of vision over several hours. Asymmetric red reflex.
Retinal detachment
Retinal detachment treatment
Consult ophthalmologist. Stay supine (lying face upward) with head turned towards the side of the detached retina.
Sudden, painless, unilateral, and usually severe vision loss (Amaurosis fugax).
Retinal vascular occlusion
Retinal vascular occlusion etiologies
Embolism from the same side (ipsilateral) carotid artery, ophthalmic artery, or heart, or giant cell arteritis.
Retinal vascular occlusion testing
Rule out carotid artery stenosis by carotid ultrasound. Look for the cherry red spot.
Retinopathy
Leading cause of blindness, most common is diabetic retinopathy. Proliferative type is most severe.
Retinopathy funduscopic exam
Cotton wool spots, hard exudates, blot and dot hemorrhages, neovascularization, flame hemorrhages, A/V nicking
Any form of ocular misalignment
Strabismus
Strabismus test
Cover/uncover test
Exotropia; esotropia
Out-turning of eyes; in-turning of eyes.
Strabismus treatment
Patch exercises, if untreated after age two, amblyopia results.
Acute/chronic otitis media findings
Age 2 and under, limited mobility of the TM with pneumotoscopy.
Acute/chronic otitis media organisms
S. pneumoniae 25%, H. influenzae 20%, M. catarrhalis 10%
Acute/chronic otitis media treatment
First line Amoxicillin.
Second line Augmentin; macrolides if pen allergic
Acute/chronic otitis media complications
Mastoiditis and bullous myringitis.